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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/*
* captoinfo.c --- conversion between termcap and terminfo formats
*
* The captoinfo() code was swiped from Ross Ridge's mytinfo package,
* adapted to fit ncurses by Eric S. Raymond <esr@snark.thyrsus.com>.
*
* There is just one entry point:
*
* char *captoinfo(n, s, parametrized)
*
* Convert value s for termcap string capability named n into terminfo
* format.
*
* Besides all the standard termcap escapes, this translator understands
* the following extended escapes:
*
* used by GNU Emacs termcap libraries
* %a[+*-/=][cp]x GNU arithmetic.
* %m xor the first two parameters by 0177
* %b backup to previous parameter
* %f skip this parameter
*
* used by the University of Waterloo (MFCF) termcap libraries
* %-x subtract parameter FROM char x and output it as a char
* %ax add the character x to parameter
*
* If #define WATERLOO is on, also enable these translations:
*
* %sx subtract parameter FROM the character x
*
* By default, this Waterloo translations are not compiled in, because
* the Waterloo %s conflicts with the way terminfo uses %s in strings for
* function programming.
*
* Note the two definitions of %a: the GNU definition is translated if the
* characters after the 'a' are valid for it, otherwise the UW definition
* is translated.
*/
#include "curses.priv.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unctrl.h>
#include "tic.h"
#define MAX_PUSHED 16 /* max # args we can push onto the stack */
#define MAX_ENTRY 2048 /* maximum chars in a translated capability */
static int stack[MAX_PUSHED]; /* the stack */
static int stackptr; /* the next empty place on the stack */
static int onstack; /* the top of stack */
static int seenm; /* seen a %m */
static int seenn; /* seen a %n */
static int seenr; /* seen a %r */
static int param; /* current parameter */
static char *dp; /* pointer to end of the converted string */
static char *my_string;
static size_t my_length;
static char *init_string(void)
/* initialize 'my_string', 'my_length' */
{
if (my_string == 0)
my_string = malloc(my_length = 256);
if (my_string == 0)
_nc_err_abort("Out of memory");
*my_string = '\0';
return my_string;
}
static char *save_string(char *d, const char *const s)
{
size_t have = (d - my_string);
size_t need = have + strlen(s) + 2;
if (need > my_length) {
my_string = realloc(my_string, my_length = (need + need));
d = my_string + have;
}
(void) strcpy(d, s);
return d + strlen(d);
}
static inline char *save_char(char *s, char c)
{
static char temp[2];
temp[0] = c;
return save_string(s, temp);
}
static void push(void)
/* push onstack on to the stack */
{
if (stackptr > MAX_PUSHED)
_nc_warning("string too complex to convert");
else
stack[stackptr++] = onstack;
}
static void pop(void)
/* pop the top of the stack into onstack */
{
if (stackptr == 0)
if (onstack == 0)
_nc_warning("I'm confused");
else
onstack = 0;
else
onstack = stack[--stackptr];
param++;
}
static int cvtchar(register char *sp)
/* convert a character to a terminfo push */
{
unsigned char c = 0;
int len;
switch(*sp) {
case '\\':
switch(*++sp) {
case '\'':
case '$':
case '\\':
case '%':
c = *sp;
len = 2;
break;
case '\0':
c = '\\';
len = 1;
break;
case '0':
case '1':
case '2':
case '3':
len = 1;
while (isdigit(*sp))
{
c = 8 * c + (*sp++ - '0');
len++;
}
break;
default:
c = *sp;
len = 2;
break;
}
break;
case '^':
c = (*++sp & 0x1f);
len = 2;
break;
default:
c = *sp;
len = 1;
}
if (isgraph(c) && c != ',' && c != '\'' && c != '\\' && c != ':') {
*dp++ = '%'; *dp++ = '\''; *dp++ = c; *dp++ = '\'';
} else {
*dp++ = '%'; *dp++ = '{';
if (c > 99)
*dp++ = c / 100 + '0';
if (c > 9)
*dp++ = ((int)(c / 10)) % 10 + '0';
*dp++ = c % 10 + '0';
*dp++ = '}';
}
return len;
}
static void getparm(int parm, int n)
/* push n copies of param on the terminfo stack if not already there */
{
if (seenr) {
if (parm == 1)
parm = 2;
else if (parm == 2)
parm = 1;
}
if (onstack == parm) {
if (n > 1) {
_nc_warning("string may not be optimal");
*dp++ = '%'; *dp++ = 'P'; *dp++ = 'a';
while(n--) {
*dp++ = '%'; *dp++ = 'g'; *dp++ = 'a';
}
}
return;
}
if (onstack != 0)
push();
onstack = parm;
while(n--) { /* %p0 */
*dp++ = '%'; *dp++ = 'p'; *dp++ = '0' + parm;
}
if (seenn && parm < 3) { /* %{96}%^ */
*dp++ = '%'; *dp++ = '{'; *dp++ = '9'; *dp++ = '6'; *dp++ = '}';
*dp++ = '%'; *dp++ = '^';
}
if (seenm && parm < 3) { /* %{127}%^ */
*dp++ = '%'; *dp++ = '{'; *dp++ = '1'; *dp++ = '2'; *dp++ = '7';
*dp++ = '}'; *dp++ = '%'; *dp++ = '^';
}
}
char *_nc_captoinfo(
/* convert a termcap string to terminfo format */
register char *const cap, /* relevant terminfo capability index */
register char *s, /* string value of the capability */
int const parametrized) /* do % translations if 1, pad translations if >=0 */
{
static char line[MAX_ENTRY];
char *capstart;
stackptr = 0;
onstack = 0;
seenm = 0;
seenn = 0;
seenr = 0;
param = 1;
dp = line;
/* skip the initial padding (if we haven't been told not to) */
capstart = (char *)NULL;
if (s == 0)
s = "";
if (parametrized >= 0 && isdigit(*s))
for (capstart = s; ; s++)
if (!(isdigit(*s) || *s == '*' || *s == '.'))
break;
while(*s != '\0') {
switch(*s) {
case '%':
s++;
if (parametrized < 1) {
*dp++ = '%';
break;
}
switch(*s++) {
case '%': *dp++ = '%'; break;
case 'r':
if (seenr++ == 1) {
_nc_warning("saw %%r twice");
}
break;
case 'm':
if (seenm++ == 1) {
_nc_warning("saw %%m twice");
}
break;
case 'n':
if (seenn++ == 1) {
_nc_warning("saw %%n twice");
}
break;
case 'i': *dp++ = '%'; *dp++ = 'i'; break;
case '6':
case 'B':
getparm(param, 2);
/* %{6}%*%+ */
*dp++ = '%'; *dp++ = '{'; *dp++ = '6';
*dp++ = '}'; *dp++ = '%'; *dp++ = '*';
*dp++ = '%'; *dp++ = '+';
break;
case '8':
case 'D':
getparm(param, 2);
/* %{2}%*%- */
*dp++ = '%'; *dp++ = '{'; *dp++ = '2';
*dp++ = '}'; *dp++ = '%'; *dp++ = '*';
*dp++ = '%'; *dp++ = '-';
break;
case '>':
getparm(param, 2);
/* %?%{x}%>%t%{y}%+%; */
*dp++ = '%'; *dp++ = '?';
s += cvtchar(s);
*dp++ = '%'; *dp++ = '>';
*dp++ = '%'; *dp++ = 't';
s += cvtchar(s);
*dp++ = '%'; *dp++ = '+';
*dp++ = '%'; *dp++ = ';';
break;
case 'a':
if ((*s == '=' || *s == '+' || *s == '-'
|| *s == '*' || *s == '/')
&& (s[1] == 'p' || s[1] == 'c')
&& s[2] != '\0') {
int l;
l = 2;
if (*s != '=')
getparm(param, 1);
if (s[1] == 'p') {
getparm(param + s[2] - '@', 1);
if (param != onstack) {
pop();
param--;
}
l++;
} else
l += cvtchar(s + 2);
switch(*s) {
case '+':
*dp++ = '%'; *dp++ = '+';
break;
case '-':
*dp++ = '%'; *dp++ = '-';
break;
case '*':
*dp++ = '%'; *dp++ = '*';
break;
case '/':
*dp++ = '%'; *dp++ = '/';
break;
case '=':
if (seenr)
if (param == 1)
onstack = 2;
else if (param == 2)
onstack = 1;
else
onstack = param;
else
onstack = param;
break;
}
s += l;
break;
}
getparm(param, 1);
s += cvtchar(s);
*dp++ = '%'; *dp++ = '+';
break;
case '+':
getparm(param, 1);
s += cvtchar(s);
*dp++ = '%'; *dp++ = '+';
*dp++ = '%'; *dp++ = 'c';
pop();
break;
case 's':
#ifdef WATERLOO
s += cvtchar(s);
getparm(param, 1);
*dp++ = '%'; *dp++ = '-';
#else
getparm(param, 1);
*dp++ = '%'; *dp++ = 's';
pop();
#endif /* WATERLOO */
break;
case '-':
s += cvtchar(s);
getparm(param, 1);
*dp++ = '%'; *dp++ = '-';
*dp++ = '%'; *dp++ = 'c';
pop();
break;
case '.':
getparm(param, 1);
*dp++ = '%'; *dp++ = 'c';
pop();
break;
case '2':
getparm(param, 1);
*dp++ = '%'; /* *dp++ = '0'; */
*dp++ = '2'; *dp++ = 'd';
pop();
break;
case '3':
getparm(param, 1);
*dp++ = '%'; /* *dp++ = '0'; */
*dp++ = '3'; *dp++ = 'd';
pop();
break;
case 'd':
getparm(param, 1);
*dp++ = '%'; *dp++ = 'd';
pop();
break;
case 'f':
param++;
break;
case 'b':
param--;
break;
case '\\':
*dp++ = '%';
*dp++ = '\\';
break;
default:
*dp++ = '%';
s--;
_nc_warning("'%s' unknown %% code %s",
cap, _tracechar(*s));
break;
}
break;
#ifdef REVISIBILIZE
case '\\':
*dp++ = *s++; *dp++ = *s++; break;
case '\n':
*dp++ = '\\'; *dp++ = 'n'; s++; break;
case '\t':
*dp++ = '\\'; *dp++ = 't'; s++; break;
case '\r':
*dp++ = '\\'; *dp++ = 'r'; s++; break;
case '\200':
*dp++ = '\\'; *dp++ = '0'; s++; break;
case '\f':
*dp++ = '\\'; *dp++ = 'f'; s++; break;
case '\b':
*dp++ = '\\'; *dp++ = 'b'; s++; break;
case ' ':
*dp++ = '\\'; *dp++ = 's'; s++; break;
case '^':
*dp++ = '\\'; *dp++ = '^'; s++; break;
case ':':
*dp++ = '\\'; *dp++ = ':'; s++; break;
case ',':
*dp++ = '\\'; *dp++ = ','; s++; break;
default:
if (*s == '\033') {
*dp++ = '\\';
*dp++ = 'E';
s++;
} else if (*s > 0 && *s < 32) {
*dp++ = '^';
*dp++ = *s + '@';
s++;
} else if (*s <= 0 || *s >= 127) {
*dp++ = '\\';
*dp++ = ((*s & 0300) >> 6) + '0';
*dp++ = ((*s & 0070) >> 3) + '0';
*dp++ = (*s & 0007) + '0';
s++;
} else
*dp++ = *s++;
break;
#else
default:
*dp++ = *s++;
break;
#endif
}
}
/*
* Now, if we stripped off some leading padding, add it at the end
* of the string as mandatory padding.
*/
if (capstart)
{
*dp++ = '$';
*dp++ = '<';
for (s = capstart; ; s++)
if (isdigit(*s) || *s == '*' || *s == '.')
*dp++ = *s;
else
break;
*dp++ = '/';
*dp++ = '>';
}
*dp = '\0';
return(line);
}
/*
* Here are the capabilities infotocap assumes it can translate to:
*
* %% output `%'
* %d output value as in printf %d
* %2 output value as in printf %2d
* %3 output value as in printf %3d
* %. output value as in printf %c
* %+c add character c to value, then do %.
* %>xy if value > x then add y, no output
* %r reverse order of two parameters, no output
* %i increment by one, no output
* %n exclusive-or all parameters with 0140 (Datamedia 2500)
* %B BCD (16*(value/10)) + (value%10), no output
* %D Reverse coding (value - 2*(value%16)), no output (Delta Data).
* %m exclusive-or all parameters with 0177 (not in 4.4BSD)
*/
char *_nc_infotocap(
/* convert a terminfo string to termcap format */
register char *const cap, /* relevant termcap capability index */
register char *str, /* string value of the capability */
int const parametrized) /* do % translations if 1, pad translations if >=0 */
{
int seenone = 0, seentwo = 0, saw_m = 0, saw_n = 0;
char *padding, ch1 = 0, ch2 = 0;
char *bufptr = init_string();
char temp[256];
/* we may have to move some trailing mandatory padding up front */
padding = str + strlen(str) - 1;
if (*padding == '>' && *--padding == '/')
{
--padding;
while (isdigit(*padding) || *padding == '.' || *padding == '*')
padding--;
if (*padding == '<' && *--padding == '$')
*padding = '\0';
padding += 2;
while (isdigit(*padding) || *padding == '.' || *padding == '*')
bufptr = save_char(bufptr, *padding++);
}
for (; *str; str++)
{
int c1, c2;
char *cp;
if (str[0] == '\\' && (str[1] == '^' || str[1] == ','))
{
bufptr = save_char(bufptr, *++str);
}
else if (str[0] == '$' && str[1] == '<') /* discard padding */
{
str += 2;
while (isdigit(*str) || *str == '.' || *str == '*' || *str == '/' || *str == '>')
str++;
--str;
}
else if (*str != '%' || (parametrized < 1))
bufptr = save_char(bufptr, *str);
else if (sscanf(str, "%%?%%{%d}%%>%%t%%{%d}%%+%%;", &c1,&c2) == 2)
{
str = strchr(str, ';');
(void) sprintf(temp, "%%>");
(void) strcat(temp, unctrl(c1));
(void) strcat(temp, unctrl(c2));
bufptr = save_string(bufptr, temp);
}
else if (sscanf(str, "%%?%%{%d}%%>%%t%%'%c'%%+%%;", &c1,&ch2) == 2)
{
str = strchr(str, ';');
(void) sprintf(temp, "%%>%s%c", unctrl(c1), ch2);
bufptr = save_string(bufptr, temp);
}
else if (sscanf(str, "%%?%%'%c'%%>%%t%%{%d}%%+%%;", &ch1,&c2) == 2)
{
str = strchr(str, ';');
(void) sprintf(temp, "%%>%c%c", ch1, c2);
bufptr = save_string(bufptr, temp);
}
else if (sscanf(str, "%%?%%'%c'%%>%%t%%'%c'%%+%%;", &ch1, &ch2) == 2)
{
str = strchr(str, ';');
(void) sprintf(temp, "%%>%c%c", ch1, ch2);
bufptr = save_string(bufptr, temp);
}
else if (strncmp(str, "%{6}%*%+", 8) == 0)
{
str += 7;
(void) sprintf(temp, "%%B");
bufptr = save_string(bufptr, temp);
}
else if ((sscanf(str, "%%{%d}%%+%%c", &c1) == 1
|| sscanf(str, "%%'%c'%%+%%c", &ch1) == 1)
&& (cp = strchr(str, '+')))
{
str = cp + 2;
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, '+');
if (ch1)
c1 = ch1;
if (is7bits(c1) && isprint(c1))
bufptr = save_char(bufptr, c1);
else
{
if (c1 == (c1 & 0x1f)) /* iscntrl() returns T on 255 */
(void) strcpy(temp, unctrl(c1));
else
(void) sprintf(temp, "\\%03o", c1);
bufptr = save_string(bufptr, temp);
}
}
else if (strncmp(str, "%{2}%*%-", 8) == 0)
{
str += 7;
(void) sprintf(temp, "%%D");
bufptr = save_string(bufptr, temp);
}
else if (strncmp(str, "%{96}%^", 7) == 0)
{
str += 6;
if (saw_m++ == 0)
{
(void) sprintf(temp, "%%n");
bufptr = save_string(bufptr, temp);
}
}
else if (strncmp(str, "%{127}%^", 8) == 0)
{
str += 7;
if (saw_n++ == 0)
{
(void) sprintf(temp, "%%m");
bufptr = save_string(bufptr, temp);
}
}
else
{
str++;
switch (*str) {
case '%':
bufptr = save_char(bufptr, '%');
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
bufptr = save_char(bufptr, '%');
while (isdigit(*str))
bufptr = save_char(bufptr, *str++);
if (*str == 'd')
str++;
else
_nc_warning("numeric prefix is missing trailing d");
--str;
break;
case 'd':
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, 'd');
break;
case 'c':
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, '.');
break;
/*
* %s isn't in termcap, but it's convenient to pass it through
* so we can represent things like terminfo pfkey strings in
* termcap notation.
*/
case 's':
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, 's');
break;
case 'p':
str++;
if (*str == '1')
seenone = 1;
else if (*str == '2')
{
if (!seenone && !seentwo)
{
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, 'r');
seentwo++;
}
}
else if (*str >= '3')
return((char *)NULL);
break;
case 'i':
bufptr = save_char(bufptr, '%');
bufptr = save_char(bufptr, 'i');
break;
default:
return((char *)NULL);
} /* endswitch (*str) */
} /* endelse (*str == '%') */
if (*str == '\0')
break;
} /* endwhile (*str) */
return(my_string);
}
#ifdef MAIN
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
int curr_line;
int main(int argc, char *argv[])
{
int c, tc = FALSE;
while ((c = getopt(argc, argv, "c")) != EOF)
switch (c)
{
case 'c':
tc = TRUE;
break;
}
curr_line = 0;
for (;;)
{
char buf[BUFSIZ];
++curr_line;
if (fgets(buf, sizeof(buf), stdin) == (char *)NULL)
break;
buf[strlen(buf) - 1] = '\0';
_nc_set_source(buf);
if (tc)
{
char *cp = _nc_infotocap("to termcap", buf, 1);
if (cp)
(void) fputs(cp, stdout);
}
else
(void) fputs(_nc_captoinfo("to terminfo", buf, 1), stdout);
(void) putchar('\n');
}
return(0);
}
#endif /* MAIN */
/* captoinfo.c ends here */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.